2022 Fiscal Year Annual Research Report
Designing high-performance thermoelectrics in low-dimensional materials
| Project/Area Number |
20K15178
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| Research Institution | Tohoku University |
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Principal Investigator |
NGUYEN TUANHUNG 東北大学, 学際科学フロンティア研究所, 助教 (10844425)
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | Thermoelectricity / DFT calculation / 2D materials / Photocatalytic / Optical properties / 3D semimetals / Raman spectra |
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| Outline of Annual Research Achievements |
In this fiscal year, six papers and one textbook were published, which are summarized as follows:
(1) We found an unusual thermoelectric behavior in 3D Dirac and Weyl semimetals, called the Hall thermoelectric effect. We also found that the van Hove singularities of the 3D nodal-line semimetal can enhance thermoelectric performance.
(2) We designed a new 2D Janus material, Ge2SSe, which can synthesize and show high performance for thermoelectric and photocatalytic.
(3) We published a book introducing first-principles calculations using the Quantum ESPRESSO package, a powerful tool for multidisciplinary research.
(4) We collaborated with the experimental groups to study the optic and Raman spectra of 2D and 1D materials, such as graphene, MoTe2, W6Te, etc.
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